I don't mind talking about menstruation issues. I had an NT female friend and one time I talked about it with her, but she told me to quiet down about such things.
I don't mind announcing my period has started to my mom, but I kinda have to because my periods are irregular if I don't take my meds.
On the physical side I don't get regular periods because of PCOS. Also before I had pills to treat the problem I didn't get cramps really. Even now I don't always get them, or slightly, so I suppose that's different. I don't get PMS either, or not that I've noticed. I don't think that has anything to do with AS though.